Présentation :
Nom(s) :
Améthyste (variété de quartz).
Étymologie :
Améthyste: Du grec amethustos = qui protège de l'ivresse.
Groupe, Famille :
Famille des Quartz (Cristallins).
Couleur :
Am...
Presentation :
Names) :
Hilulitis.
Group, Family:
Silicate quartz.
Quartz silicate with inclusions of zircon, goethite and garnet which crystallize in massive formations.
...
Presentation :
Names) :
Hilulite.
Group, Family:
Silicate quartz.
Quartz silicate with inclusions of zircon, goethite and garnet which crystallize in massive formations.
...
Presentation :
Names) :
Hilulite.
Group, Family:
Silicate quartz.
Quartz silicate with inclusions of zircon, goethite and garnet which crystallize in massive formations.
...
Presentation :
Often confused with jade despite its much lower hardness 2.5 to 4 for Serpentine compared to 6.5 to 7 for Jade and Jadeite.
Names) :
Serpentine => Ant...
Presentation :
Often confused with jade despite its much lower hardness 2.5 to 4 for Serpentine compared to 6.5 to 7 for Jade and Jadeite.
Names) :
Serpentine => An...
